Arrangement structure of the printed circuit board and the interface cable connector of a magnetic disk drive

1. In a magnetic disk drive comprising: a device enclosure having a bottom base and a cover; at least one storage disk; a spindle motor, coupled to and extending partially from the enclosure, the spindle motor having a shaft coupled to the disk for rotating the disk; a voice coil motor, coupled to the enclosure, for controlling the position of a carriage, the carriage supporting a magnetic head, the head being positioned relative to the disk for reading or writing magnetic information to and from the disk; a printed circuit board, coupled to the enclosure, for controlling the magnetic disk drive; and an interface cable connector, coupled to the printed circuit board, for providing a connection from a main CPU to the printed circuit board; wherein said printed circuit board is disposed under the enclosure base generally beneath said carriage and said voice coil motor, wherein an entirety of the printed circuit board is positioned between the spindle motor and the interface cable connector.

2. The disk drive of claim 1 wherein a magnetic head is positioned on both sides of the storage disk at a free end of the carriage, the magnetic heads facing each other.

3. The disk drive of claim 1 wherein the printed circuit board is mounted for the inputting/outputting of power and signals between the spindle motor and the carriage.

4. The disk drive of claim 1 further comprising a preamplifier coupled to the printed circuit board at a preamplifier connector, wherein the distance between the interface cable connector and the preamplifier connector on the printed circuit board is minimized to allow the reduction in size of the printed circuit board.

5. The disk drive of claim 1 , wherein no portion of the printed circuit board extends beneath the spindle motor.

6. The disk drive of claim 1 , wherein the printed circuit board includes a first end portion positioned adjacent to the spindle motor, and a spindle motor connector positioned at the first end portion of the printed circuit board.

7. The disk drive of claim 6 , wherein the printed circuit board includes a second end portion positioned opposite from the first end portion, and the interface cable connector is positioned at the second end portion.

8. The disk drive of claim 1 , further comprising a spindle motor connector coupled to the printed circuit board and positioned at a region of the printed circuit board that is closest to the spindle motor.

9. The disk drive of claim 1 , wherein the printed circuit board covers a minority of a bottom surface area of the enclosure base.

10. A magnetic disk drive comprising an enclosure case containing part of a spindle motor for rotating a magnetic disk and a voice coil motor for controlling the position of a carriage having a magnetic head for reading or writing magnetic information from/to said magnetic disk, and a printed circuit board having an interface cable connector attached to the outside of said enclosure case for connection to a main CPU, wherein said printed circuit board is disposed at a position underneath the enclosure case opposite to said carriage and said voice coil motor, the printed circuit board being disposed under the voice coil motor and shortened with respect to an area directly underneath said spindle motor, an entirety of the printed circuit board being located between the spindle motor and the interface cable connector, and said interface cable connector being disposed at an end of the printed circuit board positioned opposite to said spindle motor.

11. The disk drive of claim 10 wherein a magnetic head is provided on both sides of the magnetic disk at a free end of the carriage, the magnetic heads facing each other.

12. The disk drive of claim 10 wherein the printed circuit board is mounted for the inputting/outputting of power and signals between the spindle motor and the carriage.

13. The disk drive of claim 10 further comprising a preamplifier coupled to the printed circuit board at a preamplifier connector, wherein the distance between the interface cable connector and the preamplifier connector on the printed circuit board is minimized to allow the reduction in size of the printed circuit board.

14. In a magnetic disk drive comprising: a device enclosure having a bottom base and a cover; at least one storage disk; a spindle motor, coupled to and extending partially from the enclosure, the spindle motor having a shaft coupled to the disk for rotating the disk; a voice coil motor, coupled to the enclosure, for controlling the position of a carriage, the carriage supporting a magnetic head, the head being positioned relative to the disk for reading or writing magnetic information to and from the disk; a printed circuit board, coupled to the enclosure, for controlling the magnetic disk drive; and an interface cable connector, coupled to the printed circuit board, for providing a connection from a main CPU to the printed circuit board; wherein said printed circuit board is disposed outside the device enclosure at a position under the enclosure base, the printed circuit board being sized and shaped to cover a minority of a bottom surface of the enclosure case.